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class="pic"><img src="https://tyunfile.71360.com/UploadFile/13915042526/637333458032021484/75361.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rhvlbxf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/13915042526/637333458032021484/75361.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="5drhxlj" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河南達(dá)克羅加工處理,達(dá)克羅</p><p><span>***更新：</span>2020-12-03 11:26:07</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="9ftrnvd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">常州捷邁特表面工程技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>張建平</p><p><span>郵箱: </span>2228205437@qq.com</p><p><span>電話: </span>13806111697</p><p><span>傳真: </span>0519_89886107</p><p><span>網(wǎng)址: </span>http://www.jmtdacromet.com</p><p><span>手機(jī): </span>0519-89886107</p><p><span>地址: </span>昆侖路35號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="79zlphl" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fntjthp" class="box"><p><p style="text-indent:25px">涂層的性能在jun事裝備上推廣達(dá)克羅涂層取代鋅鍍層，比較它們的性能指標(biāo)是必要的。為此廠、軍雙方成立了聯(lián)合試驗(yàn)小組，對(duì)鋅鉻涂層的鹽霧、濕熱、高低溫沖擊、快速腐蝕、涂層與基體附著力、涂層與漆膜附著力、涂層硬度，河南達(dá)克羅加工處理、絲網(wǎng)印字、點(diǎn)焊性、導(dǎo)電性、拉伸、折彎、緊固件強(qiáng)力緊固等十多項(xiàng)的性能與低氰鍍鋅的試件進(jìn)行對(duì)比試驗(yàn)。（各項(xiàng)試驗(yàn)方法、步驟均按國(guó)軍標(biāo)、國(guó)標(biāo)有關(guān)規(guī)定），河南達(dá)克羅加工處理。在鋅鉻涂層厚度為8μm、鍍鋅厚度為15μm情況下，外購(gòu)鍍鋅緊固件*68小時(shí)退出試驗(yàn)，河南達(dá)克羅加工處理，廠內(nèi)鍍鋅自制件在158小時(shí)出現(xiàn)了大面積腐蝕產(chǎn)物，并有大量紅色的腐蝕點(diǎn)，而鋅鉻涂層試件到1000小時(shí)才出現(xiàn)若干紅銹點(diǎn)。達(dá)克羅處理部件可長(zhǎng)期使用于海岸和大氣污染地區(qū)而不受侵蝕，達(dá)克羅涂層在多種大氣環(huán)境中，能夠長(zhǎng)效防腐。河南達(dá)克羅加工處理</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南達(dá)克羅加工處理,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333458032021484/75361.png"></div><p style="text-indent:25px">由于達(dá)克羅價(jià)格高，所以對(duì)產(chǎn)品的質(zhì)量要求也高，并且要求沒有污染，過去使用電鍍鋅的辦法，質(zhì)量低污染重且達(dá)不到要求。現(xiàn)改為無鉻達(dá)克羅后，各方面的要求就都達(dá)到了。汽車行業(yè)，由于是高速運(yùn)行車輛，其零部件要求穩(wěn)定性好、防熱、防潮及防蝕性能高。因此，無鉻鋅鉻涂層技術(shù)在汽車摩托車方面有著極普遍的應(yīng)用前景。在我國(guó)，上海大眾、別克、通用、奧迪等汽車的許多零部件，如車門彈簧、剎車系統(tǒng)彈簧、制動(dòng)軟管卡箍等均采用無鉻達(dá)克羅涂層處理技術(shù)。地鐵隧道、鐵路及電氣化鐵路的金屬件，地鐵和隧道都處于地下，環(huán)境陰暗潮濕、通風(fēng)較差，軌道、螺栓等金屬件極易生銹，由無污染的無鉻達(dá)克羅涂層處理提高耐蝕性，且無污染。天津達(dá)克羅金屬制品達(dá)克羅不會(huì)像其它電鍍工藝那樣，在受到拉伸和應(yīng)力作用后有裂紋，或者斷裂現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南達(dá)克羅加工處理,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457602304687/3572505.png"></div><p style="text-indent:25px">達(dá)克羅技術(shù)是無酸、堿的涂層技術(shù)。一年來經(jīng)生產(chǎn)考驗(yàn)證明，引進(jìn)該項(xiàng)技術(shù)不*較大提高了產(chǎn)品質(zhì)量，對(duì)治理環(huán)境污染亦起到了重大作用。涂料及涂層形成達(dá)克羅涂料是一種鋅和鋁的鉻酸鹽為主要成分的無機(jī)防腐蝕水基鋅鉻涂料，系一種高分散性水基溶液。它所采用的原料為μm級(jí)的片狀鋅和鋁粉。涂層形成鋅鉻漿液經(jīng)浸涂、刷涂或噴涂于鐵基零件或構(gòu)件表面，經(jīng)320℃左右高溫烘烤，形成裹覆在表面的完整、堅(jiān)固的防腐層，達(dá)到防護(hù)目的。防腐機(jī)理達(dá)克羅涂層采用的鋅、鋁片極細(xì)、極薄，分散度極高，*5～8μm的涂層內(nèi)形成了數(shù)十層致密的魚鱗狀防護(hù)層，而鍍鋅層表面則存在大小不同，深淺不一的微孔，于是導(dǎo)致兩種涂覆層防腐性能7～10倍的明顯差異。</p><p style="text-indent:25px">達(dá)克羅節(jié)能的途徑：就是將一涂的加熱固化參數(shù)進(jìn)行以下的調(diào)整，粗略估算可以節(jié)約1/4~1/5的能源費(fèi)用。將一涂加熱參數(shù)調(diào)整為（網(wǎng)帶爐）一區(qū)：80~120℃，二區(qū)至其它區(qū)調(diào)到260℃。維持現(xiàn)有加熱參數(shù)不變，將網(wǎng)帶速度調(diào)快1/3~1/4。對(duì)于采用箱式爐的用戶，可以很方便地采用一涂低溫加熱，二涂采用標(biāo)準(zhǔn)加熱的參數(shù)。分段式加熱網(wǎng)帶爐的節(jié)能措施：從2004年開始，由常州捷邁特表面工程技術(shù)有限公司負(fù)責(zé)建造的4條分段式加熱網(wǎng)帶爐開始采用降低網(wǎng)帶運(yùn)行速度，55min~60min完成加熱固化的全過程，一區(qū)溫度設(shè)定在120℃，二區(qū)以后全部設(shè)定在320℃。達(dá)克羅的處理工藝決定了達(dá)克羅沒有氫脆現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南達(dá)克羅加工處理,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457445234375/1084208.png"></div><p style="text-indent:25px">達(dá)克羅涂層技術(shù)的開發(fā)背景：達(dá)克羅涂層技術(shù)在日本稱Dacromet，在美國(guó)和歐洲則稱為鋅鉻涂層技術(shù)。達(dá)克羅涂層技術(shù)比較早產(chǎn)生于20世紀(jì)60年代后期的美國(guó)，其比較初是為解決汽車底盤零件遇含鹽份的雨雪易發(fā)生銹蝕，威脅車輛運(yùn)行安全而發(fā)明的一種防護(hù)技術(shù)。70年代歐洲的法國(guó)、德國(guó)、意大利等國(guó)和80年代的日本先后引進(jìn)了該項(xiàng)技術(shù)。該項(xiàng)技術(shù)的成功應(yīng)用較大提高了鐵基材料的防腐性能。90年代由國(guó)內(nèi)某空降設(shè)備廠初個(gè)引進(jìn)，在一項(xiàng)與德國(guó)合作的產(chǎn)品上成功的應(yīng)用了此項(xiàng)涂層技術(shù)。達(dá)克羅涂覆的生產(chǎn)過程需要管控好工件的前處理。無錫達(dá)克羅涂裝設(shè)備</p><p style="text-indent:25px">達(dá)克羅涂層技術(shù)在日本稱Dacromet，在美國(guó)和歐洲則稱為鋅鉻涂層技術(shù)。河南達(dá)克羅加工處理</p><p style="text-indent:25px">目前采用碳化除油的廠家比較多，如何利用網(wǎng)帶爐的余熱除油，這里介紹天津某廠的經(jīng)驗(yàn)。在處理達(dá)克羅工件快結(jié)束時(shí)（尾部工件已經(jīng)走到爐子的中部），此時(shí)就開始進(jìn)行碳化處理，因?yàn)榇藭r(shí)的爐溫比較高，同時(shí)等到除油的工件到溫開始冒煙時(shí)，達(dá)克羅工件已經(jīng)出爐。這樣合理調(diào)配工序，又能節(jié)約一些燃料費(fèi)。對(duì)于箱式爐來講，如何充份利用爐子空間，也就能夠使節(jié)能效果達(dá)到比較大值。現(xiàn)在市場(chǎng)上流行的達(dá)克羅涂料可分為兩個(gè)基本的類型：含鉻達(dá)克羅涂液和無鉻達(dá)克羅涂液。目前國(guó)內(nèi)市場(chǎng)上流行的是含鉻的達(dá)克羅涂液，在國(guó)外，隨著環(huán)境保護(hù)意識(shí)的增強(qiáng)，無鉻化已成為一種趨勢(shì)，無鉻化涂料已開始逐步流行。在日本，有無鉻達(dá)克羅表面處理液?V505?和?V872?出售，其部分性能比有鉻的達(dá)克羅還要好。河南達(dá)克羅加工處理</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2250432.html</p></div></div></div></div></div><div id="jfk0nvi" class="page-right twoColRt"><div id="o0sgazf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="m8zk0xs" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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